QFileSystemModel and USB drive

Hi,
I created a QTreeView using QFileSystemModel to browse the directory structure of drives. When I connect my usb drive to my computer, the explorer shows new drive letter. But the treeView does not show any changes. It did not show my Usb drive. I had to close my program and run again to show it. Is it a bug or how can I fix this problem?

@Wieland
Thank you for the information,
I can see two attachments on the link you provided.

0001-QFileSystemWatcher-Win32-Listen-for-WM_DEVICECHANGE_56_161028.patch
28/Oct/16 6:41 AM
20 kB
0002-QFileInfoGatherer-Win32-Connect-to-drive-arrival-rem_56_161028.patch
28/Oct/16 6:41 AM
4 kB
Do I have to apply patch for both files? Which one should be applied first?